package com.example.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;

@Configuration

public class DruidConfig {
    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DataSource druidDataSource() {
        return new DruidDataSource();
    }

    //后台监控
    @Bean
    public ServletRegistrationBean StatServlet() {
        ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(new StatViewServlet(), "/druid/*");
        //后台需要有人登录，账号密码配置
        HashMap<String, String> initParameters = new HashMap<>();

        //增加配置

        //登录Key
        initParameters.put("loginUsername", "admin");
        initParameters.put("loginPassword", "123456");

        //允许谁可以访问
        initParameters.put("allow", "");

        //禁止谁访问
        // initParameters.put("aaa", "192.168.11.123")

        // 设置初始化参数
        bean.setInitParameters(initParameters);
        return bean;
    }

    //filter
    @Bean
    public FilterRegistrationBean webStatFilter() {
        FilterRegistrationBean bean = new FilterRegistrationBean();
        bean.setFilter(new WebStatFilter());
        //可以过滤哪些请求？
        Map<Object, Object> initParameters = new HashMap<>();
        //这些东西不进行统计
        initParameters.put("Exclusion", "*.js,*.css,/druid/*");

        bean.setInitParameters(initParameters);
        return bean;
    }
}
